Antisiphon-trap.



F. DU MOND.

ANTISIPHON TRAP.

AAAAAAAAAAAAAAAAAAA 17, 1912. 1,055%? Patented Jan. 14,1913. 2 EEEEEEEEEEEE 1.

F. DU MOND.

ANTISIPHON TRAP. APPLIGATION I'ILBD MAY17. 1912.

Patented J an. 14, 1913.

2 SHEE'IB-SHEBT 2.

' tivelj a tdp and FRANK DU MOND, OF ROGHES'IER, NEW YORK.

' Specification qf Letterslatent.

Patented Jan.141913.=

Application flled May 17, 1912. Serial N0. 697,832.

T0 all whom z't may concem:

Be it known that I, FRANK DU MOND, of

Rochester, in the county 0f M9nroe and State of New York, have invented a ne'w 5 and usefu1 Improvernent in Antisiphon- T raps, which improvement is ful1y set forth in thefollowing specification and shown in ehe accompanying drawings.

The pr esnt invention relates to antisiphon traps and an object of the same is t-o provide a t-rap which is -of the most approved sanitary construct-ion, is inexpensive to manufacture am]. Will effectively prevent siphoning under any condition which Will arise during the use thereof.

T0 these and other ends the invention sonsist-s in vcertain part's and combination of :pal1*ts all f whichwill be hereinafter described, the novel feat-ures being pointed out in the appended claims.

In the drawmgs: Figure 1 is a side view of th ebath tub to whichthe invent-ion is applied; Fig. 2 is-an en1arged view 0f the arap fro m ehe clean 0ut end thereof; Fig. 3 1s a side view ofthe trap with the outlet pipe removed and looking in the direction of the arrow Fig. =2; Figs-. 4 and 5 are respeca bot-(0m view of the trap; Fig. 6 is a section 011 the line bb Fig.v 4:; Fig. 7 is a .section on the line ce Fig. 5, th e inlet pipe being removed; Fig. 8 illus trates a modification of the trap adapted for use with basins 01 sinks, the dotted hnesshowing the manner of arranging the out- 1etpipe diflerent from that sl 1own in fu11 1ines; Fig. 9 shows the outlet p1pe arranged in an other manner; Fig. 10 is a t0p v'1ew of the rhodificat-ion shown in Figs. 8 and 9, the outlet pipe being shownin full 1ines, as illustrated in f1111 lines"in Fig. 8, and, in the dotted lines sho'wing thaoi1tlet pipe as in the position shown in Fig. According t0 this"'nventiorifhiare is provideda body 01 bu1b 1 whichjs elongated horizontally and has a c1ea11-out at one end consisting in this iristanc'e -0f Ia' f 1ens 01 transparent portion 2held gain{stjthe packing ring 3 by a clamping rifig 4;. body haS an in1e pipe or c dnnection@ giqnnected 5 attached in an} suitable Ix1:innn.as t0 a bath tub 6, said inlet being providediwith a curved portion 7 which bends below the plane of the lowermost portion of the bulb and enters the 1atter on a tangent to .the horizontal axis o f the bu1b o1 bodyflearone end of the latter, in this instance, the c1ean out end. The curved portion 7 serves to contam t-he water seal which is formed as shovyn in Fig. 6.- -Also connecting with the 1nlet of the trap is the overflow pipe o1 connection which leads vertically ab 9 from the upper portion of thel bath tub and bends laterally at 10 over the body 1 and thence downwardly at 11 connecting with the inlet between the vertical portion 5 thereof and the in1et opening 8, the'proximate Walls of t-he overflow pipe and the bulb 1ying in close engagement so as to reduce the size cf the trap to a minimum and forming a lip 12 which serves as a sealing 1ip or point for the trap. The Walls of the overflow connection and t-he inlet connection may form a 1ip 12 which extends ab least 130 ehe water seal shown in Fig. 6 and serves as a means for separating these connections above the seal to prevent a circulation through them, a result which is-very desirable as a einzulat-ion of air through these connect-ions after the overflow has become fouled is very disagr'eeable.

The outlet of the trap is located atthe end of the body opposite the inlet, and, in the einbodiment shown in Figs. 1 to 7, comprises an externally threaded nipple 13 projecting upwardly from the top of the body and having the outlet pipe 14 secured thereto by a clamping ring 15, said out-let pipe consisting of a return bend which penn1ts the .vertical port-ion 16 thereof t0 be thrown int-o the plane of the overthrow pipe and the inl'et as shown in Fig.4 so that the.trap may be roughed in like the ordinary commercial conmcted waste and overflow. As the water ianters the trap body on a t-angent at o-neenfql thereof and passes out of the top of the*tr'ap-at the other end thereof, it '1s caused totravel in a spira1 path fro1n the in- 1et to the out1et' about a horizontal axis. This action'is facilitated by forming an internal spiial grqove which merges into the inlet at o-ne end and connects with the outlet ab the othenend{ In the embodimeircof the invention shown in Figs. 8 and 9,-the body 1 0f the trap is substantially the sairie-as that shown inFigs. 1 t0 7. The inlet 5 connec'ts with the basin )1 link 6 and bends' laterally ab 7 a below the body 1 t0 enter the said body tangentially. The overflow pipe is omitted so that the pipe 5 lies in close proximity to the bu1b or body l. The outlet pipel4 connects with -.pipe to Toe positi0ned 011 either side '0f the A trap constructe i in accordance Wi&h this inventi0n is not pr0vidled with any lips 0r projections t0 obstruct tha free fiow o1 water. The inlet and the 0ut1et am of the sarne size so that there is 110 chokin Whin the trap, am]. n0 air space is prov1ded so that the fouling of the trap is impossible. The c1ean out is located below the water line &Il(i all 03T? the interi0r Walls are eleaned 01 sc0urecl with every discharga The trap has very small vertical height and ?oy reason auf the fact Chat the inlet and the ouet are located at opposite ends 01 the elongated bocly, out 0f alinement With each other, there is obtainecl a vary great resistanca 130 siphoning The trap has special aclvantages When used With bath Imbs as i may ba located entirely above the fi001 and benaath the tub, its outlec an i overfiow connecting the1eto in such a manner t-hat the usual roughing in n0w done by plumbers for connecting with he bath tub is the same, i:hus not adding to the cost of installing the.trap.

VVhat I claim as my invention and desire to secure by Letters Patent 'is:

l. An anti-siphon trap comprising a body elongated horizontally and subst-antially o:f uniform Width throughout its langt-h and having an inlet leading into the bottom thereof near 0ne end 011 a tangent t0 the body, said in1et extending from a point above the body and making a lateral and upw ard bend prior to connecting with the body so as t0 provide a sea1 therein; and an outlet leading through the outer Wall 0f t-he body at the opposite end thereof.

2. An anti-siphon trap comprising a body elongated horizontally and provided with an internal groove leading from one end 0f the trap t0 the other, an in1et extending from a point above the body, making a lateral and upward band prior t0 connacting with the body so as to provide a sea1 in said bend, the inner end of said inlet merging -iuuto the spiral groove at the bott0m 015 the body near 0ne end 0f the latber and on a tangent t0 said body, and an 0utlet leading through the top of Ehe inclosing Wall of the body near the opposite eno1, whereby the material is caused t0 flow in a spiral path about a horizontal .axis from be in1et 130 the outlet.

3. An anti-siphon trap-comprising a=b0dy elongated horizontally anl provided with an inlet leading to one en 0f the bodly 011 a tangent, and an outlet leading from t-he body near the other end, said body being provided With an internal spiral groove leading from the inlet to 1the outlet.

4c. An anti-siphon trap comprisiing an elongated body provided with an, internal spiral groove leading 35mm 0ne end 01E the trap to thepther, an outlet at the top 0f the b0dy, and an inlea: pipe provided With a lat- 'era1 and upward band, said inlet pipe connecting with the bottom 0f the t1rap and having its inner end merging into the spira'1 groove.

5. An anti-siphon trap comprising a body elnngated horizontally, a vertically arranged inlet bending laterally, thence upwardly and entering the bottom of 'the body near 0ne end 011 a tangent t0 the body t0 provide a sea1 below Said body, a vertically arranged overfiow bending laterally over the body, thence downwardly and cor'mecting with the inlet between the body and the vertical porti0n 0f the in1et, and an outlet ieading from the top of the body at the end opposite the inlet.

6. An anti-siphon trap elongated horizontally, a vertical in1et pipe extending frorn a point above the body, bending lab erally, thence upwardly and entering the bottom of the trap near 0ne end, on a tangent to the body, t0 prov1de a sea1 in the inlet pipe belo'w the trap body, and an overflow pipe connecting vv1th the inlet pipe be tween the body and the vertical port1on 0f the inlet, both wa11s 0f said overflow extending at least to the sea1 in the in1et pipe, and an'outlet leading through the inclosing wall 0f the body at the end opposite to the in1ec.

FRANK DU MOND. Witnesses:

HAROLD H. SIMMS, ADA M. VHITMORE. 

